New Delhi,UPDATED: Mar 2, 2023 20:58 IST

By India Today Education Desk: The Central Board of Secondary Education (CBSE) will conduct the Class 12 Biology board on March 16, 2023, for the current academic year for students of the science stream. As per the CBSE, the syllabus comprises five units: Reproduction, Genetics, Biology in Human Welfare, Biotechnology, and Ecology.

The unit of Genetics carries the maximum weight of 20 marks, and the unit of Ecology carries the least weightage of 10 marks. Do go through the weight mark of each unit so that you can allocate preparation time accordingly.

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This section has VSA, each carrying 1 mark. It will have Multiple Choice Questions (MCQs) and Assertion Reasoning (AR) questions. While answering the MCQ, don't forget to mention the option that you have selected. AR questions require carefully reading of both statements to arrive at the correct answer.

This section has a question that carries two marks each. Your answer should have four points. If it is a "differentiate between" question, always tabulate your answer.

This will have Questions which will carry 3 marks each. Your answer should contain six points. A flow chart or a line diagram must support these answers.

This section contains Case Based Questions (CBQ) to test analytical/application/data interpretation skills.

Read the paragraph and carefully observe the data or graph so you do not miss any details.

Section E will have questions of 5 marks each. If the question has subparts, pay attention and see if it has two parts, then the marks division becomes 2+3 or 3+2. This will help you write the answer accordingly. These answers must be accompanied by a diagram wherever possible.

Please ensure that you write carefully to avoid cutting and overwriting. Always mention the answer number clearly.

Leave one line between answers; if you get time, please draw the line at the end of every answer. You can use a blue or black pen for writing and a sharpened pencil to draw and label diagrams.

NCERT rationalised syllabus for Classes 6 to 12: Check full deleted syllabus for 2022-23

- Tips and tricks shared by Dr Deepti Srivastava (HOD Biology) SNS Gurgaon.

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CBSE Class 12 Biology board exam 2023: Section-wise tips to ace the board exam - India Today